276 to 300 of 455 API Design Jobs

Software Engineer

Location
United Kingdom
permanent role with a fully remote working arrangement, with travel as required. The Role As a Software Engineer on our TermTime platform, you will design, develop, and maintain our timetabling and scheduling solutions. You will also be involved in reimagining and redeveloping this product to create a new, innovative … practices for creating secure, efficient, and high-quality code. Experience working within agile methodologies. It Would Be Great If You Had Understanding of database design for building efficient applications. Experience with API design and third-party system integrations. Experience with containerized applications. Exposure to deploying code ...

Java Backend Engineer | Spring Boot, Microservices, Kafka

Location
Glasgow, Scotland, United Kingdom
GlobalLogic in Scotland is seeking an experienced Backend Engineer to design and build robust microservices using Java 17+ and Spring Boot 3. You’ll work across the full backend stack—from API design through production-grade integration testing—delivering scalable services. You will design, implement … test REST APIs, apply domain-driven design, and work with Kafka, Gradle, MapStruct and Feign to deliver resilient services in a hybrid work environment. #J-18808-Ljbffr ...

Solutions Lead Data & AI

Location
Greater London, England, United Kingdom
within our team, you will shape solution designs that deliver real business value across major infrastructure programmes. Core Responsibilities Lead end-to-end solution design for complex data and AI projects, from initial discovery through to implementation planning. Architect tool-agnostic technical solutions that span the entire data lifecycle … including ingestion, storage, processing, analytics, and AI applications. Conduct requirements gathering and stakeholder workshops, translating business challenges into well-defined technical solutions. Design integration architectures that connect disparate systems, data sources, and platforms. Evaluate and recommend appropriate technologies across the data and AI landscape, balancing client constraints with best ...

Senior Software Engineer

Location
Greater London, England, United Kingdom
colleagues' work. You'll share production support with your fellow senior engineer, so the platform never depends on one person. What you will do Design, build, test and maintain secure SaaS applications Develop and maintain APIs, databases and integrations with third-party systems Carry out code reviews and help … looking for A relevant degree or equivalent professional experience 5+ years' software development experience Experience with cloud platforms (AWS and/or Azure) Strong API design and development skills Solid database skills (relational and/or NoSQL) Experience with automated testing and secure-coding practices Nice to have ...

Principal Software Developer

Location
Cambridge, England, United Kingdom
vendor offerings and appropriate architectures and patterns for those offerings. A deep understanding of cloud-compatible architectures (such as microservices and SoA), RESTful API design considerations, and ideally, a good awareness of security and authentication considerations (OAuth is relevant). A strong academic track record including a good … addition to tailored package elements. Keywords: Principal engineer, principal software developer, C#, .NET, cloud, Azure, AWS, cloud native, containers, microservice, service-oriented, REST, API, intelligence, security, authentication, OAuth, sustainability, Cambridge, hybrid. #J-18808-Ljbffr ...

Technology Architect Scala

Location
Greater London, England, United Kingdom
Development Life Cycle including Requirements Elicitation, Application Architecture definition and Design. You will play an important role in creating the Architecture and high-level design artifacts. You will also do technical feasibility and identify smart ways of completing client’s requirement. You will guide the team technically and work … Agile team Preferred Message-oriented-middleware (Kafka, AMQP, MQ, AMPS, etc.) experience Distributed systems experience Web Application development (JavaScript, AngularJS, Bootstrap, etc.) Rest API design and development DDD/CQRS/Event sourced systems experience Relevant industry (banking middle/back office) experience Experience in scripting languages (Bash ...

Product Engineer

Location
Greater London, England, United Kingdom
role As a Product Engineer at Encord, you\'ll be embedded at the core of our product — owning features end-to-end, from the API design and backend systems all the way through to the UI that annotation teams, ML engineers, and compliance officers use every day. … product and ship high-quality features at pace, maintaining strong CI/CD and testing practices throughout Work closely with customers, product, and design to understand problems deeply and deliver solutions that create real impact Contribute to shaping how the team works — our architecture decisions, engineering culture, and product ...

Senior AI Engineer

Hiring Organisation
RWS
Location
Royal Borough of Windsor and Maidenhead, United Kingdom
Employment Type
Full Time
Service Operations, Data & Analytics, Security & Quality Compliance, Transformation, Application Development, and Enterprise Platforms. Job Overview Key Responsibilities Architecture and technical strategy Contribute to the design and architecture of core platform components and evaluation systems, making the load-bearing technical decisions and bearing accountability for their reliability, scalability, and long … capabilities are built, evaluated, and deployed across the company, and define a coherent platform vision that scales beyond your immediate team. Design reusable abstractions, SDKs, and services for model integration, prompt management, experimentation, and deployment that establish organization-wide patterns and reduce duplicated effort. Research and delivery excellence Help ...

Senior Data & AI Product Engineer

Location
Greater London, England, United Kingdom
understand and do, bringing real-world context into every business decision. About the Role As a Senior Enterprise Product Engineer, you will design and deliver scalable Data & AI products that transform Xoople’s Earth data into enterprise-grade, analytics-ready solutions. You will combine large-scale data processing, machine … workloads, and enabling seamless integration of Earth data into enterprise environments. Flexible work model depending on location (Spain or the UK) Impact You Own Design and deliver scalable, high-performance Data & AI products and pipelines. Develop machine learning and statistical models on large-scale datasets to enable advanced analytics. ...

Senior Software Engineer (C# .NET) | London

Location
Greater London, England, United Kingdom
include: Engage in all phases of application development, with a focus on coding and debugging in alignment with security standards throughout the entire lifecycle Design, build, and maintain efficient, reusable, and reliable code/APIs to support applications both for web and mobile Collaborate regularly in a cross-functional … version control software such as GIT Knowledge of SOLID principles Knowledge of clean code practices Experience using web service protocols such as Rest, API design for extensibility and integration Experience debugging complex applications Experience with Agile development project management methodologies Database Development in SQL Server or NoSQL Databases ...

Security Engineer

Location
Greater London, England, United Kingdom
infrastructure will support authorisation with scoped short‐lived credentials. This is a hands‐on engineering role, securing Man's applications and services. Role Responsibilities Design, build and operate security platform services and APIs such as policy decision, just-in-time access and short‐lived credential issuance. Write and maintain … resource quota enforcement. Policy engines and workload identity (e.g., OPA/Rego, Kyverno, Cedar, OpenFGA, SPIFFE/SPIRE, Envoy/service mesh). API design (REST/gRPC) for internal platform consumers. Network security controls: WAFs, segmentation, TLS termination and egress filtering. Inclusion, Work-Life Balance and Benefits ...

Senior Full Stack Engineer

Location
Greater London, England, United Kingdom
interfaces used to plan and manage operations, review missions and work with the data captured in flight. You'll be solving problems such as: Design, build and ship full stack features in React and FastAPI, owning them from problem statement through to production and the feedback that comes back … experience and a track record of building high-quality production software. You'll bring: Strong React and modern TypeScript Strong Python , ideally FastAPI Good API design and relational data modelling Experience with asynchronous systems Experience with cloud infrastructure, containers, CI/CD and monitoring Experience building systems that ...

Senior Full Stack Engineer AI, AIML - London, UK

Location
Greater London, England, United Kingdom
work at home 100% of the time.Your Role:Senior full stack engineering capability with a strong frontend foundationReactJS and TypeScriptStrong backend engineering mindset API design integration performance securityAIML engineering skills building and integrating AI driven features into products ideally with practical experience using modern model toolingDevOps capability … countries. We deliver end-to-end services and solutions with our deep industry expertise and strong partner ecosystem, leveraging our capabilities across strategy, technology, design, engineering and business operations. The Group reported 2025 global revenues of €22.5 billion.Make it real | www.capgemini.com #J-18808-Ljbffr ...

Head of Engineering

Location
United Kingdom
Proven experience managing highly available, business-critical platforms where reliability, data integrity and security are essential. Strong technical expertise across backend and frontend development, API design, relational databases and data modelling. Hands‐on experience with cloud infrastructure, containerisation, CI/CD pipelines and infrastructure as code. Experience implementing ...

Senior Full Stack Engineer

Hiring Organisation
Dignity Funerals Limited
Location
Maidenhead, Berkshire, South East, United Kingdom
Employment Type
Permanent
Salary
£90,000
will bring expertise in full stack development using JavaScript or TypeScript, Node.js, and React or Angular , together with strong knowledge of systems architecture, API design and databases. You will also understand the importance of observability, monitoring, testing, performance, security, accessibility and modern DevOps practices. You are comfortable working ...

Junior Solutions Architect

Location
Greater London, England, United Kingdom
excellent opportunity for someone looking to work alongside experienced professionals on real, large-scale projects. Required Technical Skills Key Responsibilities: Supporting the design and documentation of scalable, secure, and maintainable solution architectures. Working with chief architects and senior engineers to clarify requirements and define solution scope. Translating business … Contributing to architecture documentation including system diagrams, data flows, and integration points. Assisting in defining non-functional requirements (performance, security, reliability, scalability). Supporting API design and integration planning across internal and third-party systems. Participating in cloud deployment planning across AWS, Azure, or GCP environments. Continuously learning ...

Platform Engineer: Golang & iOS SDKs – Hybrid 12m Contract

Location
West of England, England, United Kingdom
site). The role focuses on building backend services in Go, iOS SDKs in Swift, and cloud-native platforms on Kubernetes. You will design REST/gRPC APIs, develop microservices, and automate CI/CD pipelines. Applicants should have strong experience with Go, Swift, Kubernetes, and modern API … design, plus familiarity with cloud tooling and observability. #J-18808-Ljbffr ...

Senior Full-Stack Engineer — Data Platform & AI-Ready

Location
Greater London, England, United Kingdom
complex landscape, accelerating prototypes to production. You will collaborate with business teams, analysts, and architects; work with developers, designers, and IT peers; contribute to design and code reviews, API design, and unit testing, while pushing for scalable, maintainable software. #J-18808-Ljbffr ...

Senior MuleSoft Developer: API & Cloud Integrations

Location
Greater London, England, United Kingdom
team in London. You will work with Solution Architects to implement AnyPoint platform-based integrations across on-premises and cloud systems, shaping API design and deployment strategies. The role emphasizes REST API development with RAML/OpenAPI, DataWeave transformations, and CI/CD deployment. Strong communication ...

Senior ML Engineer

Location
Greater London, England, United Kingdom
defining the future product and platform experience, patterns, and contribution pathways that will enable federated scale over time. ML Engineers – Responsibilities & Skills Responsibilities Design and build MCP servers and tools that expose enterprise systems and workflows to AI agents. Implement Skills that orchestrate tools, data, and reasoning into repeatable … governed workflows. Contribute to the LSEG AI Assist agentic harness, including planning, tool‐calling, and orchestration logic. Build secure API wrappers where backend systems lack suitable authentication or entitlement models. Work closely with product teams in a “build for” capacity, transferring knowledge and establishing reusable patterns. Shape the developer ...

Principal Fullstack Engineer

Location
Greater London, England, United Kingdom
role. What you build in year one shapes the product for years. KEY OUTCOMES Own the architecture of Steven.com's most complex systems, from design through production and long-term evolution Set the engineering standards, patterns, and abstractions the rest of the team builds on Architect the AI-native … core of the product: LLM-powered workflows, intelligent pipelines, and agentic systems that don't exist yet Make the final call on high-stakes design decisions and catch systemic risk before it becomes debt or downtime Mentor senior and junior engineers, raise the bar through code review and architectural ...

Remote Full Stack Software Engineer (Senior, Python / Rust / Go & React, Insurance)

Location
United Kingdom
Strong in a semi‐mainstream programming language (e.g. Python, Typescript, Rust, Go, etc) Proficient with frontend/GUI framework Good understanding of data processing, API design/integration, and system architecture Comfortable adopting new tools and technologies as needed — adaptability is more important than narrow specialisation security/… software for business critical, web‐based applications Build eye‐catching, functional, efficient, and reusable web and mobile‐based sites that drive these web applications Design, build, test, document and maintain APIs and integrations Ensure quality control using industry standard techniques such as automated testing, pairing, and code review Work ...

Senior Java Backend Engineer: Microservices & Kafka Hybrid

Location
Glasgow, Scotland, United Kingdom
GlobalLogic in United Kingdom is seeking an experienced Backend Engineer to design and build robust, scalable microservices using Java 17+ and Spring Boot 3. You will work across the full backend stack — from API design through to production‐grade integration testing — using modern Java and Spring technologies. … will design REST APIs, implement event-driven solutions with Kafka, and collaborate with cross-functional teams. #J-18808-Ljbffr ...

Senior PHP Developer Manchester / Hybrid £70,000 - £80,000

Location
Manchester, England, United Kingdom
media and digital partners. They’re looking for a Senior PHP Developer to join their Manchester team and help build and scale their API platform. What you’ll be doing Building and maintaining RESTful APIs Writing clean, testable PHP code Managing integrations with third party providers and partners Improving … across the platform Reviewing code and supporting other developers What you’ll bring Senior level commercial experience with PHP 8 Laravel or Symfony Strong API design and integration experience MySQL or PostgreSQL Automated testing, Docker and CI/CD AWS or similar cloud experience Nice to have Redis ...

Senior Software Engineer I, Core Objects

Hiring Organisation
Braze
Location
New York, United States
Employment Type
Permanent
Salary
USD Annual
building our Core Objects systems and features. WHO YOU ARE 5+ years of full-stack development experience Experienced technical leader Strong understanding of design, data structures, and algorithms A self-starter with great communication and organizational skills and will have worked in a team environment before Bonus points: Professional … experience building software at scale Professional experience with one or more of Ruby, Ruby on Rails, React, Go, SQL, and NoSQL databases, distributed systems, API design/monitoring/best practices Experience with agile processes Passionate about customer experience For candidates based in the United States ...